The 22-year-old singer performed at the Royal Variety Performance, which was filmed back in November but aired on Monday and got a huge round of applause! And all of it was in front of Prince William and Kate Middleton!

According to the White House Press Secretary, the Prince and the Prez will be having a sit down in the Oval office on Monday:

"President Obama will host Prince William, the Duke of Cambridge, for a meeting in the Oval Office on Monday, December 8. The Vice President and Dr. Biden will also host The Duke of Cambridge for a separate meeting in the White House."

No comment on whether tea and crumpets (with Declaration of Independence-themed napkins) will be provided.

Of course, the Obamas visited the Royals at Buckingham Palace back in 2011, so its only fitting that the Prince be extended the same hospitality.

It's their first time in New York City, so we HOPE they get to do at least one of these things!

Kate Middleton and Prince William are gearing up for their visit to the Big Apple starting on Sunday the 7th, and it looks like the Duchess of Cambridge has some items she wants to cross off on her own itinerary.